40 #ifndef vtkPNrrdReader_h
41 #define vtkPNrrdReader_h
43 #include "vtkIOMPIImageModule.h"
48 class vtkMPIOpaqueFileHandle;
dynamic, self-adjusting array of char
general representation of visualization data
topologically and geometrically regular array of data
a simple class to control print indentation
Multiprocessing communication superclass.
Read nrrd files file system.
Read nrrd files efficiently from parallel file systems (and reasonably well elsewhere).
virtual unsigned long GetHeaderSize(vtkMPIOpaqueFileHandle &file)
Get the header size of the given open file.
vtkMultiProcessController * Controller
virtual void ReadSlice(int slice, const int extent[6], void *buffer)
Given a slice of the data, open the appropriate file, read the data into given buffer,...
~vtkPNrrdReader() override
virtual void PartitionController(const int extent[6])
Break up the controller based on the files each process reads.
virtual void SetupFileView(vtkMPIOpaqueFileHandle &file, const int extent[6])
Set up a "view" on the open file that will allow you to read the 2D or 3D subarray from the file in o...
virtual void TransformData(vtkImageData *data)
Transform the data from the order read from a file to the order to place in the output data (as defin...
static vtkPNrrdReader * New()
virtual int ReadHeader(vtkCharArray *headerBuffer) override
int GetDataScalarTypeSize()
Returns the size, in bytes of the scalar data type (GetDataScalarType).
void SetGroupedController(vtkMultiProcessController *)
A group of processes that are reading the same file (as determined by PartitionController.
virtual void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
vtkMultiProcessController * GroupedController
virtual void SetController(vtkMultiProcessController *)
virtual int ReadHeader() override
virtual void ExecuteDataWithInformation(vtkDataObject *data, vtkInformation *outInfo) override
This is a convenience method that is implemented in many subclasses instead of RequestData.